Theoretical Analysis of a Simultaneous Graphene-Based Circular Plasmonic Refractive Index and Thickness Bio-Sensor

Khodadadi, Maryam; Moshiri, Seyyed Mohammad Mehdi; Nozhat, Najmeh

doi:10.1109/jsen.2020.2987696

Cited by 22 publications

(8 citation statements)

References 54 publications

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“…The development of the 6G and 7G communication era, which will enable real-time terabits per second wireless connectivity for network sensing, holographic communication, and the cognitive internet of everything, will be accelerated by the addition of silicon photonics to CMOS compatible terahertz technologies. In fact, silicon periodic waveguides [5], metal slot waveguides [6], metal-insulator-metal structures [7], gold nanowire waveguides [8], plasmonic nanoparticles [9], silicon hybrid waveguides [10], dielectric-metal-dielectric design [11], dielectric-loaded waveguides [12], photonic crystal waveguides [13], optical amplifiers [14], graphene plasmonic structures [15,16] have all been reported to realize the AOLGs. Most of these designs have employed photonic crystals to implement one or at most two logic gates [5,9,10,[17][18][19][20], unlike our simple design, which implemented seven logic gates at once.…”

mentioning

confidence: 99%

Silicon-on-silica waveguides-based all-optical logic gates at 1.55 μm

Kotb

Zoiros

2023

Phys. Scr.

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The demand for faster and more efficient integrated photonic circuits has prompted the rise of silicon-on-insulator technology. In this paper, silicon-on-silica waveguides have been employed for the all-optical realization of a complete family of logic gates, including NOT, XOR, AND, OR, NOR, NAND and XNOR operated at 1.55 μm. This waveguide consists of three identical slots and six microring resonators, all made of silicon patterned on silica. The principle of operation of these logic gates is based on the constructive and destructive interference induced by the phase difference between the input signals. The gates’ performance is evaluated against the contrast ratio (CR) metric. Compared to existing waveguides, the proposed waveguides achieve higher CRs with a speed as high as 120 Gb/s.

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mentioning

confidence: 99%

Silicon-on-silica waveguides-based all-optical logic gates at 1.55 μm

Kotb

Zoiros

2023

Phys. Scr.

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“…However, ring resonator-based filters show narrow bandwidth. Hence, due to the important performance of narrow-band filters as the motivation behind designing plasmonic bio and refractive index sensors, various configurations of advanced sensors have been studied due to the increasing demand for biochemical analysis and accurate detection of toxic gases or other types of materials 35 . Optical sensors based on metal–insulator-metal (MIM) waveguides have been considered by researchers due to their relatively high sensitivity, immunity to electromagnetic interference, and ease of fabrication 36 .…”

Section: Circular Hpw-based Filter Refractive Index and Temperature S...mentioning

confidence: 99%

“…12 a with the exception that the HSQ spacer is replaced with a nano-fluidic channel containing sample of interest. In order to evaluate the sensing performance, two parameters of sensitivity and figure of merit (FOM = S n /FWHM) should be calculated, where and are variations of the resonance wavelength and refractive index, respectively 35 . Variation of ER leads to the modification of FWHM, which will affect the sensing performance of the proposed sensor, because the FHWM is inversely related to the FOM.…”

Section: Circular Hpw-based Filter Refractive Index and Temperature S...mentioning

confidence: 99%

Controllable hybrid plasmonic integrated circuit

Khodadadi

Moshiri

Nozhat

et al. 2023

Sci Rep

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In this paper, a controllable hybrid plasmonic integrated circuit (CHPIC) composed of hybrid plasmonic waveguide (HPW)-based rhombic nano-antenna, polarization beam splitter, coupler, filter, and sensor has been designed and investigated for the first time. In order to control the power into a corresponding input port, a graphene-based 1 × 3 power splitter with switchable output has been exploited. The functionality of each device has been studied comprehensively based on the finite element method and the advantages over state-of-the-art have been compared. Moreover, the effect of connection of CHPIC to the photonic and plasmonic waveguides has been studied to exhibit the capability of variety excitation methods of the CHPIC. Furthermore, the performance of the proposed CHPIC connected to inter/intra wireless transmission links has been investigated. The wireless transmission link consists of two HPW-based nano-antennas as transmitter and receiver with the maximum gain and directivity of 10 dB and 10.2 dBi, respectively, at 193.5 THz. The suggested CHPIC can be used for applications such as optical wireless communication and inter/intra-chip optical interconnects.

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“…The necessity of directivity enhancement of OMBNAs, which plays a critical role in design of point-to-point wireless link, leads to utilizing the ideas of array configurations and directors 24 , 25 . Moreover, controlling the access of each receiver to radiated data is a major requirement of multi-user nano-systems, which boosts the reliability and information security 26 .…”

Section: Introductionmentioning

confidence: 99%

Smart optical cross dipole nanoantenna with multibeam pattern

Moshiri

Nozhat

2021

Sci Rep

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In this paper, an optical smart multibeam cross dipole nano-antenna has been proposed by combining the absorption characteristic of graphene and applying different arrangements of directors. By introducing a cross dipole nano-antenna with two V-shaped coupled elements, the maximum directivity of 8.79 dBi has been obtained for unidirectional radiation pattern. Also, by applying various arrangements of circular sectors as director, different types of radiation pattern such as bi- and quad-directional have been attained with directivities of 8.63 and 8.42 dBi, respectively, at the wavelength of 1550 nm. The maximum absorption power of graphene can be tuned by choosing an appropriate chemical potential. Therefore, the radiation beam of the proposed multibeam cross dipole nano-antenna has been controlled dynamically by applying a monolayer graphene. By choosing a suitable chemical potential of graphene for each arm of the suggested cross dipole nano-antenna without the director, the unidirectional radiation pattern shifts ± 13° at the wavelength of 1550 nm. Also, for the multibeam nano-antenna with different arrangements of directors, the bi- and quad-directional radiation patterns have been smartly modified to uni- and bi-directional ones with the directivities of 10.1 and 9.54 dBi, respectively. It is because of the graphene performance as an absorptive or transparent element for different chemical potentials. This feature helps us to create a multipath wireless link with the capability to control the accessibility of each receiver.

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Theoretical Analysis of a Simultaneous Graphene-Based Circular Plasmonic Refractive Index and Thickness Bio-Sensor

Cited by 22 publications

References 54 publications

Silicon-on-silica waveguides-based all-optical logic gates at 1.55 μm

Silicon-on-silica waveguides-based all-optical logic gates at 1.55 μm

Controllable hybrid plasmonic integrated circuit

Smart optical cross dipole nanoantenna with multibeam pattern

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